# Vitest v0.10.0 — Release & Upgrade Intelligence
- **Product:** Vitest (https://vitest.dev)
- **Version:** v0.10.0
- **Released:** Apr 25, 2022
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/vitest/updates/v0.10.0/

## Executive Summary (TL;DR)
Vitest v0.10.0. Source highlight: From Vitest v0.10.0, the callback style of declaring tests is deprecated. You can rewrite them to use `async`/`await` functions, or use Promise to mimic the callback style.

## Breaking Changes & Deprecations
- Breaking Changes From Vitest v0.10.0, the callback style of declaring tests is deprecated. You can rewrite them to use `async`/`await` functions, or use Promise to mimic the callback style.

## Bug Fixes
- types for EachFunction are missing awaitable return (fix: #1181) (#1182) (95b1ba4)